Skip-hoist.



P. A. ORTQN. SKIP HOIST.' grumman rups nm. 14, mos. A

f Patented Aug 4 SHEETS-SHEET P. A. oRToN.

SKIP HosT. APPLICATION FILED DEO. 14,l 1908,

Patanted Aug. 10, 1909 4 SHEETS-SHEET 2. 5

rtaza.

P. A.- oRToN.

SKIP HOIST. PPLIOATION FILED 1120.14, 190s.

Patented Aug. 10 4 sHETs-SHBBT 3,

P. A. oRToN. SKIP HUIST.. APPLICATION FILED 1330.14, 19084 y 939,685.Patented Aug. 10, 1909.

4 SHEETS-SHEET 4.

mine/5596: Ihnen/far.'

een seit .kennis teeniesx reino s. ceros, censimenti, ILLiNoIs.

S-HOIST.

ne. gemeen'.

Patented. Aug. 1o, loos.

, of Chicago, inthe county of @ook and State v of Illinois, haveinvented certsin new and useful im rovementsl in Skip-Hoists, of

which the ollowin is e specicotion.

This invention re etes to hoists,end relates I particularly to' what areknown es skip hoists gine and passing over-intermediete,sheavesy meansfor 'llling the ski-ps or buckets vof designed and ndepted for handlingvarious( materials, ss coih coke, orefeshes, and the like, andcomprising one or more siiflgisA or buckets movable in suitable :wrightguide ways and adopted to he rsi'sediand lowered hy means of cablesconnected to said skips or 'buckets and to the drum of `:i hoisting enrotatably mounted et the"npper ends' of the guideways in which saidskips or buckets move. l

Heretofore, so :tar es om swore, the

hoists of the type to which my invention relates, and the means forstorting the hoisting engine, when it .is'desired to reisels skip orbucket, have been manuel controked., This method of operation req ires`thecorxstar'it attendance and attention di? one ,or more operatives forilling the' skips or! buckets and for-storting the hoisting' engine andis olojectionsble. onsccounto the expense involved and valso on accountoclelsy snol loss of time due to insttention and slowness lon the mrtotA the operatives. I i,

Afili-"he primary object of the invention is to i rovlde s skip hoist ofthis type, which shell ,sutomatic in its operation, lrotlfi` as re-`gsi-ds the filling of theskips or buckets, and the starting otthehoisting engine to raise the skips or buckets when full."

To this end my rinvention consists oi the` various features,combinations of eotures and details 0i construction hereinsiterdescribed and claimed. l Y.

ln the accompartying; drawings, in which my invent-ion isfullyillustratedwliigure 1 is a side elevation of e double skiphoistfemhodying my invention. Fig. 2 is creer View thereoi Fig. 3 1s nView on en enlarged scale, similar to Fig-1,' of the bottom portion ofmy `improved hoist, showing' the means for automatically filling theskips or ,buckets and for starting thehoistingr eno/fine.v

Fig. i is a View, opposite tobigg. Z, also on an enlarged seele, of thepei-s shown in l* 1g'.

4showin the lever which operates the starting switches. Figl- 6 is on`enlarged side View of the up er e `d of e guidewoy showing the Ineensor uxnpinr the buckets, the 'limit switch losing 'omitted end Fig. 7 ise View, on en cinici-ged scale,\.o the upper end of s guide or ways,showing s' switch for cutting outl the hoisting engine when o skip orbucket reaches the upper limit `of its movement,

Reerrin nos? tothe drawings, 1 riesige, mites suits le supports, formedin which ere uideweyn formed, as shown, by channel ors'` Ada ted to runin the guideways 2 are skips or uckets 3, and et, said ski s or bucketsbeing preferably provided Wit which engage said guideways. Said wheelsor rollers ore preferably located in Vertical alinement between thecenters of said skips or buckets and the sides thereof remote from thedirection 'in which seid skips or buckets are desi ed to dump.

. The s ips or buckets Sandi are adapted to be raised 'by ineens of asuitable hoisting lengine, indicated et 7, with which they are connectedby suitable cables 8 andv which pass over sheaves rotatably mounted adjecent to the upper'ends of the guideways Q. "To facilitate dumping theskips or buckets 3 and 4i, the cables 8 are connected thereto belowtheir centers ofgravity, being prefer ably' connected tolbales 10,pivoted to said skips or buckets adjacent to theirbottoms, as shown, tothe pivot studs on which the lower guide wheels or rollers 6 eremounted,= lVith the descrihed'construction, it is el. vious that the.skips or buckets 3 and It will, I at l.ell times, he in 4condition ofunstable equilibrium, and are maintained ,in upright position. only byengagement ofthe 'wheels or rollers Send (3 with the guideways 2, theupper wheels or rollers always'exerting o thrust in ythe direction inwhich said skips or buckets are designed to dump, hereinafter calledI aforwardA thrust, and the lower Wheels or rollers-6 in the oppositedirection, hereinafter cslleda rearward thrust.

To prow J@for eutomaticolly dumpingthc skips or buckets 3 ond 4, whenthey come into desired position,A the front sides or flanges of theguidexveys 2 are broken :may oud nre extended laterally, as shown at ll.o l distance slightly greater thon the disifiucc 3. Fig;y 5 is afragmentary perspective vie-w up'v per and llov/'er Wheelsior rollers 5and 6,'

In* l t:

' they approach the upper limits of their 'niovenient, to cut-out andbrake the hoisting r`vfhcels or rollers have pessed below the lembedst'lfl, commonly known as limit between the uper and lower guide wheelsor rollers 5 an l 6. Thus, when the upper guide wheels or rollers 5 cometo the lateral extensions 1l, the forward thrust thor'eof will causesaid lup .er wheels ci' rollers to run out upon lateral eXtensions,' therearward thrust ofk 'the lower wheels or rollers 6 causing themtix-follow the guide el' ways 2, soithat, as the hottoms of the skips orbuckets are raised above seid lateralextensions il, the skips or1ouckets will be in-f vented at an, desired, predetermined, angledY Andreverse y, ss the skips orr buckets are" again lowered, the weightthereof will operste to return them to iuprightv iosition and to bringthe upper wheels-or ro lers o again into engagement with. the guidewnys2 shove the lower wheels or rollers 6. To prevent seid skips or bucketsfrom becomingA iuverted in their aides, suitable means, not shown, areprovi ed 'for maintaining the upper wheels or rollers' 5 out ofengagement with the guideways' 2 until after the lower gaps or openingsin seid guidewsys through which the upper wheels or rollers 5 poss intoengagement with' the lateral ,track eX- tensions il.

Skip hoists of this generil type ere old oud well known, so that, asregards its gen-- erst struotmsl features audits operation, the hoistshown in the drawings will los readily understood by those familiar withthe srt without e more detailed descriptionV thereof. y

My invention contemplates the use of any desired or approved form ofhoistino' engine l', but contemplates controlling tie saune electricallyWhatever itsl character. lu` the drawings, l have indicated e hoistingengine operated by means of an electric motor, the circuits of which areadaptedA to be controlled by suitable starting switches, indicated et 12and 13, and by switches indiswitclies, adapted to he operated by movement of theskips or buckets, preferably as engine and to kcut-in said'hoisting engine and to reverse the current through the crms.- l tur-cofthe motor of the hoisting engine, es scid skips or buckets recede fromthe upper limits of 'their movement, Various systems of'electricalwir-ing adopted for thus controlling motors, in this und other arts, arenow in common use and well known and can he' readily installed :byskilled electricians Without' a more detailed description thereof. lThespecific lcharacter of the electricsl wiring and connections forms. noport of the present invention and need not, there-`j fore, bedescribed.` l f The material for .handling which the h 'ist is designed,is contained in e suitable hop-- '-22 scones per, indicated at 16,provided with spools or chutes i7 adopted to discharge intodifferentskips or buckets, when said skips or buckets are at the 4lowerends ofthe guide- 'ways 2. its the invention relates to rendering :iskip hoist of this type automatic in its operation, as regards fillingthe skips or buckets, the construction of my improved hoist is usfollows: ln a double skip hoist, like that illustrated, thecontrolling'means ore in duplicate for each skip or bucket. Adescription of one set of controlling; means' will therefore suffice andthe accompanying description is accordingly in the smgula'r. Euchdischarge spout 17 from the hopper 16 iscontrolled lay s suitable gate18 which is maintained normally closed .by suitable means, es by aWeight applied thereto. As shown, Suid gate is pivoted to the sides ofthe hopper spout and is maintained normally closed hy o weight 19applied directly thereto. My invention, lxfovircvel', conteur.

pletes equally the use of other forms of gate and other methods ofapplyin thc weight thereto adopted for accomplis ing the end in View..Pivoted adjacent tothe lower end of each of the fvuidewsys', is u lever20 which is connectednwith u lever arm 21 on the gute i8 by o connecting'rod' or link 22, the ,relation being such that depression of said`lever will operate to open the gate 18. The free end of the lever '2Gprojects into the path of travel of a skip or bucket, being so vcsithmedthat the bottom of said skip.' or uchzet will contact therewith s shortd1s' tence from the lower limit. of movement of said or bucket, soy, forexample, inches. -The various lever and link connections sre soproportioned und adjusted that the weight of a skip or bucket, whenempty, will sufficient to open the gate 18 :ig'ailist the normalresistance -appliedthcreto for closing the same and such, also, 'thatsaid gate will he fully opened` or will he opened to o desired extentbefore thc skip or bucket reaches the lower limit of its movement, soy,for example, 5 inches" from its exil-clue lower limit., Toreduccifriction und wcm', an sutiriction roller 253, designed :ludadopted to Contact with thc bottom of thc skip or bucket, is mounted atthe free 0nd of thc lever 2()u The spncc between the mul of euch spout17 and the skip o1' l'mcm into which it' is adopted todcliver motorini,is bridged hy means oan apron .24 pivol'cd at the end of said spout andforming :i continu ation et the bottom thereof. Vifhcn thc skip lll',

`or bucket is raised above said apron. scid apron is swung pivotallysons to ,or 'icct 4 As said skip or bucket descends it 'will strike saidapron and turn thessme p ,lli against the force of the weight it wide iff open simi sieriing Switch.

will rhueopere lo meinein seidV apron in close contact Willi elle sioleof seid skip orloncke. Wills lille described eonstruetion, it isfobviensliert es 'en empty skip or biiclret deeefenfle it will operaie 'todepress ili'elever .9G and will open ,elle geel, tiene permiulingmateriel to mi; from faire hopper 16 into seid skip o'r. lonelre, andvthai, es soon seid skip or lnieire: begins to rise, the Weight 19applied lo solei gaie will operate to close the seme, 'linie renderingthe opening and closing of seid gole entirely automatic, ooniroileil bymovement of seid skip 'or lmeket.

im lie inverion releies Ito automatically openingenrl elosing theSterling switches of on' electrically conrollecl hoisting engine,whereby elle li'iriing; switch corresponding lo eaeli skin i. ,marketwill be closed to @tart lie engine, vallen tlie bucket iefilled, eziagain oulomzitieally. opened eS sonnes Seid buche? luie' been raised eshort predetermined flislonee, ille construction and errangement of myimproved hoist is folloivsr-livoiied adjacent to the lower end of eaeliguiilewny' 2, is; o lever arm which is operatively Vconnected with thesieri-infr member oi' ille eorresponding smiling Swile by o connectingrod or link Q8, the relation beingr Fluch llia depressing tile ree endof Snifl lever below its designed normal poeiion, will operate lo closeseirl Starling; :witch :xml suoli. also, that signin raising eniil lever:arm to ile; normnl position' Will The free end of ihe lever ern: i??projects into the ypelli of l'm'el oi one of the Skips or buckets, thereleiion heini? ich that the ooltom of Seid l .eliip or buelze will comeinto conlact therenilli e .elioi-f; distance aboveV the designellfextreme lower limit of movemen of Said .iltip or hooker; say incliei inwhich posilion of Sold elgip or luiclce, the gate 18 oon-l li-fillnfp;lliv uifwlmrgge spool l?, will have l lanen fully opened? in ille nimmerhereofore iieeorilnefl. Applied to the lever firm 27 and mlogu'ml toiairiintziin the Home normally al iis limit' oi' mmfement above thelower end ol" liuc gufif-weys f2 mul o Support die wel 'lil oi" Seidlever erm 27, ogetlier with ilse elrip or lnwkel resting thereon whilethe some ie being'fillecl, is a eounierweighi 29j 'Seid counlewveighlis-so proportioned :mil

applied. iioweife, that when said skipor. luu'lw is iiileil lo apredeterminedextent, will skip or lnurlwidwill exert a turning nimm-nl:ilioui the :axis of eairl lever arm 27 gri-enter 'hon that of saiil,eounterweiglit; ulivi-oliv, when .said bucket is thus loaded, il willoyjierete lo depress said lever erm 27, 11ml illus Close illecorresponding Starting Huile-h eonlrolliug tile hoieiing engine, in rilenommer liereofora ilescrbed. In i'li preferable'r-onstruetion shown,ille lever more For liot'li skips or buckets :1re pinnefl eee Eorotlierwise rigidly securel to a shaft 30 rotamloly mounted in suitable'fixed bearings, botli of :said lever arms 27 being maintained in normalreiiseol osiions by means of n eingle eounterweig 29 app'lled to e leverarm 31 'likewise' pinned or otherwise ri idlyV veeoured'o eaicl shaft30,' The norme depressed position of ille counlterweigsglit` 29 and thusthe normal raised posieions of the lever arms 27 is clened by means oasuitable sup )ort 32 on which seidA counterweight 29 ie adl connectingrocls linkslQS are connect/ed Adirectly to e shorrflever erm 83 formedintel gral With-the lever erm SLvwhicli carries the counterweight 29, asbeet shown inFg. 5.

lilith the described construction, itie obvious that the counterweigh 29'will operate to maintain the starting swiehes .correspending to eachski or bucket normally open and that each alerting `e'o'itch will beclosed for e very shortA inervel when either Skip or bucket is filled,that is, during the time required 'for seid elrpl orlbuoket to movedownwardly to elle exrremev lower limit or' its movement and to 1loeagain raised to permit the lever erin 27H0 Resume its normal osition.

linI ori er that the skips orbuelte, when slippored on the lever orme2?, may be lfree to move downwardly lo gravity when looded, withoutresieence om and without' nfeetingthe lioising engine, the relation ie'opted to reet. As shown, also, the

s'xeh theo-seid skips or buckets will come into contact with me 'raieeends of helever amis 27 before the upper bucket 'reeehee ille extremeupper limiJ of its; movement, eey one foot. In this manner sufficientslack will loe provided in the 'cable elteohed to the lower bucket lopermit the seme to r'leeeend e. distance sulicienr to close thestart-ing swireh corresponding lo vieeid lower biielreb without exertingany .et-rein oo the cable eli:- 'eeliel lliereto. To reflue/e frictionand weer,

enti'friction rollers 34 erepreferablgf mounterl in the ends of thelever arises???4 with 'which ille botoms of elle skips .fir'bnclresContact. f' l Botl. the connecting ms or links 22 enel. 2Sv erepreferably merle djusalile, :is by mea'ni of turn buckles, tov providefor verying the operative lengths thereof anni. tlms regulating theopening otlie geltes` i8 'and the closing of the saring switeliee 12 and13. While I lieve herein shown two Starting switches 12 :mii 13, asingle martini; switchme be used equally Well7 if desire:

1. In a. hoist of the type described, the combination of guideweys, askip or boeket movable insai gnideweys, a sugply hopper provided with e(lieoliarge opemn'r for de livering material info seid skip orbiiueket.,o? `gate which controls saiddischarge operaio?, lmeans 'for maintainingsaid gele norm'oly leo , switch.

v2. In4 athoist of the type described, the

' combination ofguideways, Ye skip or bucket movable in guideways, asupply hopper provided with adischarge opening for deivering materialinto said skip or bucket, a weighted gate which controls said discharge"opemngrand' means rendered operative by the weight of an empty skip orbucket for opening s'aid gate, an electricellycontrolled hoistingengine, e starting switch therefor, and means rendered operative by theweight of'aloeded skip or bucket for closing said starting switch.

3. ln a hoist combination of guideways, askip or bucket movable in saidguideways, a supply hopper vprovided with. a discharge openin fordeliverinfr gatewhich controls said discharge opening, means formaintainin said gate normally closed, and Ineens ren ered operative bythe Weight of an empty skip or bucket for opening said gate, sindmeans-comprising a. lever arm the free end of which projects into thepath of travel'of the skip or bucket and connection between said leverarmand said gate whereby ydepression ofsaid lever .ar'i will open saidgate, an electrically controlled hoisting engine, ,n starting switchtherefor,

and means rendered operative by the Weightv of e loaded skip or bucketfor closing said startingswitch.

fl. ln a? hoist ofthe ltype described, the

combination of guideivays, askip or bucket movable in said guideways, asupply hopper provided with a discharge opening for den liveringlnaterialinto saidskip or bucket, a gate which controls said dischargeopening, means for maintaining said `gute normally closed, means4rendered operative by the weight of an empty skip or bucket for openingsaid gate, an electrically controlled hoistingengine, a starting switchtherefor, and means controlled by the Weight otra loaded skip or bucketfor closing said starting switch,y said ineens comprising a Weightedlever the free end of which projects' into the path of travel `Aof saidskip or bucket und` connectionbetween said lever vand thestartingfmember said starting switch, whereby movement of Ysaid leveragainst the force of the' weight applied thereto, will operate to closeVsaid starting switch.

L 5. lna. hoist of the type described, the

combination of guideways,.a skip or bucket movable in' said guideways, asupply hopper rovded with a,A discharge opening for de- .aiveringmaterial into said skip or bucket, a

lcontrolled hoisting en# of the type described, the

materiel into said skip' or ucket, a.

means comprisii'lpnu. weighted lever the free end of which projects intothe path ol travel of 'said skip or bucket and connection be tween saidlevier and the starting,T member of said starting switch, wherebyn'lovemcnt of said lever against the force of the weight appliedthereto, will operate to close said starting switch.

6. ln a hoist of the type described, the combination ot' guideways, askip or bucket 'movable in said guideways, an electrically controlledhoisting engine, a starting switch `therefor, and means renderedoperative by the weight of a loaded skip or ,bucket for closing saidstarting switch.

7. In a hoist of the'type des'cxibed, the

combination of guideways, a skip or bucket movable in said guideways, anelectrically controlled hoisting engine, a,4 starting switch therefor,means for maintaining said staaltmg switch normally open and moansrendered operative by the weight of'aI loaded skip or bucket for closingseid stcrtin switch for n short interval of time.

8. ln a. hoist ot the type described, the combination of guideways, askip or bucket movable in. Said guideways, an electrically .controlled.hoisting engine, a starting switch therefor, yielding means forsupportinf e skip or bucket containingless than a ihll load of materialat a distancev above the extreme lower limit of its movement, saidsupportinnr means being constructed :md ar rang to be overcome by theweight of :L skip or bucket when fully loaded, thus permitting seidloaded skip or bucket to descend to the extreme -loWer limit of itstravel and connectiouhetween said suppontiug means and the.`sta1tingmember of the starting switch, whereby the finaldownvard movement of theloaded skip or bucket Will operate'to close said starting switch.

9. ln a hoist of the type described, the combination of lideways, a skipor bucket movable in ,saicl ruideways, an electrically 'controlledhoisting engine, a starting switch ltherefor. yielding menus forsupporting :i

skip o bucket containing less than a full load o f nur rial at a'distance above the eX- tremelowerhmit of its movement, said sup--portingmeans being constructedl und urrenged to be'overcome by theWeight of u skip or bucket when fully loaded, thus perllli` wel :hittingsaid. loaded skip or bucket to descend to tlic extreme lower limit ofits travel, and connection between said supporting means und thestarting member of the starting switch, the relation beingr such thatwhenA said supporting means are in rised position, sind starting switchwill be open and such,

also. that downward movement oiiisiiid sup!-A storting; member of saidstortingV switch, n'

countei-w'eight applied to said level' arm and adapted to maintain thesame normally in raised position, the relation being such thatdepression of said lever arm will4 loperate to 'close said startingswitch and said counter- Weight being so proportioned and applied insuch manner that it'will counterbalance the weight of said skip orbucket when said skip or bucket is less than fully loaded.

11. ln c hoist of the type described, the combination of guideways, nskip' or bucket movable in said guideways, an electrically controlledhoist-ing engine, a storting switch therefor, and means controlledby theweight of e loaded skip or bucket :for closing said sten-ting switch,said 'means comprising; a

pivoted lever arm, a connterweight applied to said level' arm andconnection between said-lever erm and the starting member of thestarting switch.

12. ln ti hoist of the type described, the

combination oguideways, a skip or bucket movable in sei guideways, anelectrically controlled hoisting engine a starting switch therefor,means controlled by the Weight of a, loaded skip or bucket for closingseid startin switch, said means comprising e.-

pivote.

lever 'one arm of which projects into the h pat of-travel of seid skipor.

bucket, a counterweight on the other arm of'. f

said lever and connection between seid lever 'and the starting member ofsaid starting switch, whereby movement of seid lever against theresistanceothe connterweight applied thereto will operate to close seidstarting switch.

13. In a hoist'of the type described, the combination of guidewiys, askipor bucket movable in said guideways, a supply hopper provided. witha discharge opening, ii gate which controls said discharge opening,means for maintaining said gate normally closed, land means for opening,said gate, said means comprising wlever arm which projects into the(path of travel of seid skp. e

or bucket es sai skip or bucket deseen and operative connection betweenseid lever arm and gate, whereby depressing said lever arm will opensaid gate.

Ih testimony, that I claim the foregoing; :is any invention, I affix mysignature in presence of two subscribing witnesses, this Qthfdny ofDecember, A. D. 1908.

n PHHO A. RTN. Witnesses:

K. A. COSTELLO,

Henny W. CARTER.

